Machine for making plaster-boards.



c. DRILL. momma ron mmumsurnn nouns. APPLICATION IILBQBBP'I'. 19, 1907.

' Patented Dec. 15. 1908 4 SHEETS-SHEET 1.

fizz-est.

G. DRILL. momma ron MAKING rmsmn BOARDS.

7 APPLICATION nun SEP'LIB, 1901. 906,619. Patented 1m 15,1908 4 sums-4mm 2.

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C. DRILL.

momma FOR MAKING PLASTER BOARDS.

APYLIOATIOH FILED SEPT. 19, 1907.

Patented Dec. 15, 1908 4 SHEETS-SHEET 3 inventor awe-9t.

ABPLIOATION FILED SBPT.1Q, i907.

Patented Dec. 15,1908

4 SHEBTSSHEET 4 UNITED srnrn sr rrnn'r orrion.

CHARLES DRILL, 01" ST. LOUIS, ltllSSOUltl, ASSIGNOR TO JOIIN EIlllllAR-Dl, Jlt., 01" ST. LOUIS, MISSOURI.

MAGHINE FOR MAKING PLASTER-BOARDS.

Specification of Letters Patent.

Patented Dec. 15, 1908.

Application filed September 19, 1907. Serial No. 893,736

analogous material, between which is a filling' of )lflSlGl', or analogous plastic material, which ccouios hard when dry; and the ohjcct of my invention is to construct a sim ple, inexpensive machine which can be operatecl with a minimium amount of power, and which will'rapidly form a series of equal sized plaster boards, which, when dried and hardened, are ready for use.

A further object. of my invention is to construct a machine for the manufacture oi plaster boards which is entirely automatic in all of its oierations, and which requires no attention alter being set in operation further than the maintenance 01 a sullicient supply of plastic material in the hopper above the forming means.

A further object of my invention is to provide a plaster board machine wherein the plastic material is packed as it passes between the sheets of paper, or like inaterial forming the surfaces of the board.

To the'ubore purposes, my invention consists in certain novel features of construction and arrangement of parts, which will 40 be hereinafter more fully set forth, pointed out in the claims, and illustrated in the accompanyin drawings, in which- Fwtire is a side'elevation of a plaster hoard machine of my improved construction; Fi II is a vertical section taken through t ie center of the machine with parts of the truck which receive the plaster hoards after being formed, in elevation; Fig. III is an end view of the machine taken lookin in the direction indicated by the arrow IIl in Fig. I; Fig. IV is a horizontal section taken a proximately on the line IV-IV of Fig. I I; Fi .V is a plan view, partly in section, of the l'uives utilized for cutting the sec- Bq tions of plaster board; Fig. V1 is an enlarged detail section taken approximately on the line \"l---Vl of Fig. Ill; Fig. V'll is an rnlurgcd rlri'atiou of a yoke which con- IlLt'l'H thr- (nds of the knives; l ig Vlll is a plan View oi a portion 0'! the irnrh which receives the plaslrr hoards atl-or the same are formed.

licl'urriug by uuuuirals to the :u'voinpauy lug dra\\'iugs:i designates l'ltl' base or platform on which the IllilllllllJ is mounted, and lixod thereon is a pair of vertically disposed side frames 3, between the upper ends of which is located an open bottomed hopper 3.

.lournaled between the upper portions of the side frames 2, and at the ends of the hopper 3, is a pair of small rollers 4; and journalcd between the side "frames 2, at the lower end of the hopper, is a pair of large rollers 5, and operatingthereon and upon the small rollers-l, are rolls (3, which extend from one side of the hopper 3 to the other, thus forming a V-shaped bottom for said hopper. The truuuions of the rollers 5 are extended through the side frames 2 on the iron! side of the machine; and fixed on said extended trunnions are the meshing pinions 7.

Fixed to the side frames 2, and depending from a point between the Toilets 5 is a vertically disposed chute 8, the space between the side walls of which determines the thickness of the plaster board to be manufactured, and the lower iortion 9 of one of the side walls of this clmte is hinged at its upper edge, as designated by 10, in order-that it may be vibrated backward and forward during the. time the plaster board is bein formed, thus packing the material of whic 1 the boards are formed, and innarting perfoot smoothness to the surfa cos thereof.

A transversely disposed shaft 11 is arranged for rotation in bearings 12 formed on the side frames 2, and fixed on the center of said shaft; is an eccentric 13, around which passes a stru p 14; and fixed to the latter is a short rod 1.1. which is connected by means of a l'lIl'll-lJHClill! 16 to a short rod 17, the outer end of which is pivotally connected to the lower edge of the section 9.

A pulley 18 is fixed on one end of the shaft. 11, and receives a belt suitably, driven, thus rotating the shaft 11, and 1n turn imparting vibratory morcmentto the movable portion 9 of the chute 8.

liigidl fixed in any suitable manner to the lower end of the fixed portion of the chute S are the Ol'lllUSllGlY arranged knife housings 19, in the tops of whichareiformed the oppositely arranged pairs of slotsQO; and arranged to more longitudinally and horizontally within said housings 19 are knives 21, having scalloped cutting edges 22.

Formed through the knives 91, adjacent the t'lltlh' then-oi", are longintdinully extend in}; Slfllfi 33, which, when the knives are positioned in the housings l9, coincide with the SlOi'S 20 formed in the tops of Rflitl housings.

iii-ranged for rotation in bearings 251-, formed on the side frames 2, immediately i\i)0\'ti the housings 19. are the transversely disposed .shat'ts 25;, each of which eurries.:i

pair 01'' depending liiwers 26, the lower ends of which, puss thrnngi the slots 20, and engage in the slots :25 in the knives. these shafts, at one end thereof are the vertically disposed Hegel-s27; and connected in the upper ends thereof are the lower ends of a pair of links J8, the upper ends of which are pirolally crni'neeted to the center of u horizontally arranged lever 29, which is fulernnied a! 1:30 to the outer face of one of the side members 2. The forward end o'f this lever is rim-ed downward, as designated by 5&1, illl-[l the oppos te. end lSPIOVlt'lOlZl with an nitlj ustnhle Weight 3'2.

Jul-anger] for rotation in bearings 13-), on the side iitol'nlnfiSii, and in nlinenient 'with the 'henringsin which the rollers are journnled, is a transversely disposed shaft M, on the front. end of. which is fi'xed a pulley 3 5, and nseginental. gear wheel d6, wvhie'h meshex with one of the pinions Y and projecting from the side of the gear whee 36 IS a pin 37, which is adapted to engage a ainst the cnrved'end 31 of the lever 29. l ixed on the opposite end of, this shuftfit is a he- 'eled pinnniBS, which meshes with the correspondiiw beveled pinion 39-earr'ied. by the upper 'en-c of, awertioally disposed i shaft 4Q, which is arranged for operation in suitable betui'IWS fixed on i one of the side: frames 2, and were being a beveled p-inion- 1 lugs 7-1, at fthe-n ipeiiendt of the isidegframes,

and outside tlio-lrt'ill-el s gt, are "rollers .72,

4-1 fixodlon the lower end .of-said shaft. 7

Fixed on the en'dofthe shaft 11, oppositefrom thef mlley 18, is a beveled pinion 42, which. meshes with the beveled pinion e25 fixed upon the end of a short sha ft 44, which latter IS arrimgcd for rotation in suitable bearings 45 carried by one of the side frames 2 and occupying n position to the rear-0f 01 this shaft 44- iis an eccentric 46, around which passes a strapefiand carried by the Fixed on f which are equal in length the knife housings 19. Fixed on 'the center are the outer ends of rods 52, which are rigidly fixed to the' ends of the knives 21.

The mechanism just described provides means for imparting longitudinal reciprocation to the knives 21. I i

The truck which receives the laster hoards after formation, and the maclihnism for automatieall moving said truck intermittently beneath the chute-S, will now he described.

The body of the truck is rectangular in form, and is mounted on grooved wheels 54, which operate on tracks 55 loeated on the base or platform 1, and arranged Within the truck is a series of vertical partitions 56, the ends of which are provided withyflan es 5'7, thus forming spaces 58. in. whio'h t he :SLL'ilOIIS of plasterboardare positioned after formation, and during the time they are hurdenin t Formec on the front side and lower edge of the body 53 is a rack 59, the teeth of and correspond to the spaces-between the partitions 56.

Fnlcru-nied ton bracket 60, on thonnder side 'ofthe hate 1, is the lower. end of a verticail disposed lever 61, to the ripper end of w iic-h is pivotally connected a awl62, the pointof which; engages, the teeth of the rack 59.

Arm-n ed for-rotation in bearin s 63, fixedto the miiimside, of. the face 1 is a s iollifslh'lft at, on one. end of which isa beveled pinion Iii), which neshewith the beveled'p-inion -l.i, and .t'ornied on the opposite end of this nlitlfll 64 is a crank 66, which operatesinthe slotted el id of .a connectii ig rod (17:, which is pivotllyeonnec'ted to. the vertical lever (51.

A spring 68jis fixed to the bracket 60, and l,:0l'l l|0t'.l'-.lng the upper end of said spring-with the-lever G1 isah-nlr 69,.t-his :spiin r being :fpr the. purposeof maintaining tlie'l t aver GI and the'paivllii'l tit-their rarward liniit of movement; i i

A bolt: 70 ilifixed to ithe' nndor'sicle ,-ofthe L ane l, and; provides an adjustable stop to limit the rearwardhwing' of; the lever 61.

Arr:aged. .for rotation ine ntabIe bearwhieh carry rolls T3, of paper, 0! amilo ou's nniteriahaml which papexgafter unwin ing from the rolls, 1 WIS-1'05 over the rollers 4, thence downward upon the belts 6,- and thence between the rollers 5, and-through the chute 8.. i

The operation of'the machine is as follows: A bolt. operating aroimdthepulley 35 imparts rotary motion to the haft 34, and the Segmental gear wlmelfiti drives the meshing piniona'i and therollers 5, and thus motion, is imparted to the bolts 6 and rollers 4.

The weig it of the plasstic material within the hopper causes tlie'paper T8"to travel downward with the belts Gpbetween the rollers 5, through the chute 8, and into one of the spaces 58 between the partitions 56 in the truck. and at the same time, a quantity of the plastic material is fed downward between the two webs of paper. During this formation of the board and the downward movement thereof, thehinged section 9 of the chute vibrates backward and forward, thus producing a packing effect and smoothing or ironing out the surfaces of the board as it passes through the chute 8. This vibratory motion is obtained by means of the eccentric 13 located on the shaft 11, which is driven by a belt traveling u on the pulley l8. 'hen the lower ends of the webs ofi paper, with the packing or filling of plastic material, reach the bottom of the truck 53, the teeth of the segmental gear wheel 36 leave the pinion 7, with which they have been engaged, and thus the feeding and forming mechanism just described ceases operation; and, at this point, the pin 37 engages the curved end 31 of the lever 29, moves the same upon its fulcrum, and throws the lower ends of the links 28 downward and outward. This movement swings the upper ends of the fingers W outward, in turn rocking the shafts 25, and the lower ends of the fingers 6 engaging in the slots 23 move the knives 21 toward one another, and through that portion of the board immediately below the chute 8, thus cutting oil the section of the board which has just been formed and delivered to the truck. This movement of the fingers 2(3 and the knives 21 is possible owing to the provision of the slots 20 in the housings 1%), through which slots the lower portions of the fingers 26 pass. The knives 21 are continuously reciprocated lengthwise in the housings 19 b means of the eccentric 46 fixed on the sha t 44, which is driven from the continuously moving shaft 11 by means of the beveled pinions 42 and 43, so that when the edges of the knives are moved toward one another, the lengthwise reciprocation easily and positively cuts the webs of paper between the lower end of the chute 8 and the top ofthe truck. As soon as the pin 37 leaves the end of the lever 29, the weight 32 causes said lever to return to its normal position, which act ion, by reason of the various connections, as described, separates the knives 21 and returns the same to their normal positions. A fter the pin leaves the end of the lever 29, and before the teeth of the segmental gear wheel 3t) reengage with the teeth of the pinion 7, the crank 66 actuatcs the connecting rod GT, in turn actuating the vertically disposed lever 61, and the pawl carried by said lever moves the truck the distance of one notch or tooth, and thus brings an empty compartment or space 58 into position immediately beneath the lower end of the chute 8. As soon as this movement is completed, the spring 68 returns the lever 61 and parts connected thereto to their normal posit1ons; and, at this point, the teeth of the segmental gear wheel 36 reen 'age with the teeth of the pinion 7, and the formation and downward movement of the plaster board is continued.

A machine of my improved construction is comparatively simple, is entirely automatic in all of its operations, and plaster boards of uniform thickness and having perfeet surfaces are very rapidly and cheaply manufactured.

I claim 1. In a machine of the class described, a hopper, a pair of endless belts arranged for operation in the hopper and forming a bottom therefor, means whereby continuous webs of paper are delivered over the belts, and forming means located immediately beneath the lower ends of the endless belts.

2; In a machine of the class described, a hopper, a pair of endless belts arranged for operation in the hopper and forming a bottom therefor, means whereby continuous Webs of paper are delivered over the belts, forming means located immediately beneath the lower ends of the endless belts, and means arran ed below the forming means for cutting t e webs of paper after the same pass through the forming means.

3. In a machine of the class described, a hopper a pair of endless belts arranged for operation 1n the hopper and formin a bottom therefor, forming means locate at the lower end of the hopper, means whereby bottom of the hopper forming means 10-.

cated at the lower end of the hopper, means whereby continuous webs of pa er are delivered over the endless belts t rough the bottom of the hopper and through the forming means, means arranged below the forming means for cutting the webs of paper, means whereby the paper delivering means is intermittently actuated, and means whereby the cutting mechanism is actuated at the termination of the paper delivering means.

5. In a machine of the class described, a hopper, forming means located at the lower end of the hopper, a ortion of which forming means is arrange to vibrate, and means whereby webs of paper are delivered throu h the bottom of the hopper and through t 1e forming means.

(3. In a machine of the class described, a hopper, forming means located at the lower end of the hopper, a portion of which forming means is arranged to vibrate, means whereby webs of pa er are delivered throu h the bottom of the opper and through t e forming means, and means arranged below the forming means for cutting the webs of paper.

7. In a machine of the class described, a hopper, forming means located at the lower end of the hopper, means whereby continuous webs of paper are delivered throu h the bottom or the hopper and through the forming means, means whereby the paper delivermg means is intermittently actuated a pair of knives arranged beneath the forming means, and means whereby said knives are simultaneously moved lengthwise and toward one another.

8. In a machine of the class described, a frame, a chute arran ed therein, means whereby continuous we s of paper are delivered through the chute, there being a filling of plastic material carried through the chute with the webs of papexymeans whereby the paper delivering means is intermittently actuated means arranged below the chute for receiving the webs of paper and filling after the same discharges from the chute, and means arranged below the eoep e chute for separating the webs of paper and the filling.

9. In a machine of the class described, a. frame, forming means arranged therein, means whereby webs of paper and filling of plastic material are delivered throug the forming means, means whereby the paper delivering means is intermittently actuated and means arranged beneath the formin means for receiving the webs of paper an filling.

10. In a machine of the class described, a frame, forming means arranged therein means whereby webs of paper and filling of plastic material are delivered through the forming means, means whereby the paper delivering means is intermittently actuated means located beneath the forming means for separating the webs of paper and filling into equal lengths, and means arran ed between the forming means for receivmg the equal sized lengths of paper, and filling.

In testimony whereof, I have signed my name to this specification, in presence of two subscribing witnesses.

CHARLES DRILL.

\Vitnesses:

IIAROLD H. ROTH, M. P. SMITH. 

